T E C H N I C A L O V E R V I E W

Simulation Reference Library for Next-Generation

Communication Architects, Standard Developers,

Baseband Developers, and Component Verifiers in

Research and Development

W1906EP/ET 5G Baseband Verification Library

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Introduction

The Keysight EEsof EDA 5G Baseband Verification Library provides trusted reference algorithmic modeling IP and a new, innovative simulation methodology that can be added to the SystemVue software platform. Today, reference models support the latest 3GPP standards. Consisting of signal processing building blocks, subsystems, reference multi-antenna system modeling examples, and infrastructure components, the library allows system architects to execute realistic technical research and easily evaluate your 5G communication system design.

The library is essential to enabling an integrated, cross-domain, model-based approach to simulation. 3GPP TR38.901 3D channel model supporting 0.5 GHz to 100 GHz channel characteristics, for example, help designers evaluate system performance in realistic channel environments and make realistic proposals for the new 5G standards.

Demonstration videos and free evaluation files of the W1906 5G library being used to investigate 5G architectures are available at:

– 5G mmWave Beamforming: https://www.youtube.com/watch?v=Hs7SciAbpHI – 5G Beamforming: https://www.youtube.com/watch?v=jH6eov3h1NM – 5G PHY Waveforms: https://www.youtube.com/watch?v=9o9J-Wxbz8E

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An Integrated, Model-Based Approach to Simulation

The 5G Baseband Verification Library is used with the Keysight EDA SystemVue electronic system level simulation platform for 5G PHY standard development. SystemVue’s integrated simulation environment, the W1465 SystemVue System Architect, is used to develop innovative designs for research and development. The integrated simulation environment allows users to investigate, implement and verify their communications PHY signal processing designs with dynamic link-level scenarios. Adding the 5G Baseband Verification Library to the mix provides:

– Supporting 5G NR physical layer channels and signals reference DSP models for – 3GPP TS 38.211 Physical Channels and Modulation – 3GPP TS 38.212 Multiplexing and Channel Coding

– 3D MIMO channel based on 3GPP TR 38.901 V14.0.0 (2017-03), Release 14 – First Over-the-Air (OTA) simulation for 5G NR mmWave – Multi-antenna system architectures, including baseband, RF and hybrid

beamforming structures. – 3GPP TR38.901 3D channel model, supporting 0.5 GHz - 100 GHz channel

characteristics – Link level performance evaluation by incorporating user antenna element pattern as

well as beam pattern files from EMPro/HFSS/CST into simulation – 3D visualization to identify and address problem areas that improve system

performance at an early stage of design

What can you do with the SystemVue 5G library?With the SystemVue 5G library, users can validate their design, and perform an integrated, cross-domain, model-based simulation of existing and new air interface technologies.

– Bridging 4G and 5G technologies: By using the W1907BP 5G Forward Baseband Verification bundle product, new 5G technology enabling systems can be modeled and evaluated on an existing 4G physical layer frame structure. LTE-like PHY designs with the extension of bandwidth, number of antennas, changing to a different waveform technology, and many other “what-if” types of simulation are also possible.

– Baseband modeling: Validate your own algorithms in C++, MATLAB, or other graphically-defined schematics and put them in our 5G reference design. SystemVue also conveniently integrates with MATLAB for IP compatibility and portability.

– Multi-antenna system modeling: Evaluate various multi-antenna system architectures including millimeter-wave beamforming technologies. Multi-channel RF chains and antenna impairments can also be included.

– Wireless channel: Investigate high frequency wireless channel characteristics by utilizing 3GPP TR 38.901 channel model to represent hostile millimeter-wave channel characteristics in end-to-end communication links.

– RF component evaluation: Fill gaps for RFIC/RF module designers who want to assess system-level performance based on simulated or tested analog designs.

Who should use the 5G library?Next-generation communication system architects, standard developers, baseband developers and component verifiers in research and development can use the 5G library to develop new algorithms and perform early system validation, with or without working baseband or RF hardware.

The 5G library is intended for use in research and development, and in academic research systems to enable the design of algorithm and system robustness in multi-channel propagation and interference situations.

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Figure 1. The W1906EP provides ready-to-use 5G reference baseband models and multi-antenna signal processing blocks to enable full link-level studies. 5G NR end-to-end physical layer transmit and receive simulation models with mmWave beamforming and 3GPP channel model (0.5 GHz - 100 GHz).

An Integrated, Model-Based Approach to Simulation (Continued)

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Figure 2. Shown here is a 5G Baseband Verification Library integration to the SystemVue communication system simulation platform sofware that executes an end-to-end link analysis and visualizes the 3D beam using a custom antenna pattern data import.

An Integrated, Model-Based Approach to Simulation (Continued)

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Simulation Models and Building Blocks

5G Advanced Modem 3GPP NR CategoryKey NR downlink baseband sources and receivers features:

Support 15kHz, 30kHz, 60kHz and 120kHz numerologiesSupport 60kHz numerology with normal cyclic prefix and extended cyclic prefixSupport SSB with 15kHz, 30kHz and 120kHzSupport SSB with different periodicity and time offsetSupport multiple ports for each BWPSupport channel coding, scrambling, layer mapping, precoding, modulation in PDSCH, PDCCH and SSBSupport PDSCH with PDSCH DMRS transmissionSupport PDCCH with PDCCH DMRS transmissionSupport CORESET RB bitmap to define CORESETSupport multiple BWP and one SSB with the same numerology in NR_DL_numerology_SrcSupport multiple BWP and one SSB with different numerologies in NR_DL_SourceSupport timing and frequency synchronization with SSB and calculate the SSB powerSupport PBCH demodulationSupport PDSCH demodulation without SSB and PDSCH overlap in frequency domainSupport MMSE-2D channel estimation without SSB and PDSCH overlap in frequency domainSupport LDPC/polar encoder and decoder

Key 3GPP NR uplink source features:Support 15kHz, 30kHz, 60kHz and 120kHz numerologiesSupport multiple BWP and multiple ports for each BWPSupport PUSCH with PUSCH DMRS transmissionSupport channel coding, scrambling, layer mapping, precoding, modulation in PUSCH

Models NR_CRCDecoder: CRC decoderNR_CRCEncoder: CRC encoderNR_Demapper: QAM demodulatorNR_DemuxFrame: Radio frame de-multiplexer wit frequency offset compensatorNR DemuxSlot: Downlink slot de-multiplexerNR DeScrambler: NR Downlink and Uplink descramblerNR DL BeamsScheduler: Downlink beams schedulerNR DL BI Direction Mapping: Parse BI information and output directionNR DL DemuxOFDMSym: Downlink OFDM symbol demultiplexer for 3GPP NR downlinkNR DL FrameSync: 3GPP NR Downlink timing and frequency synchronizerNR DL MuxOFDMSym: Downlink OFDM symbol multiplexer for 3GPP NR downlinkNR DL Numerology Rcv NR DL Numerology Src NR DL ResourceAllocator: Downlink resource allocatorNR DL Source PartNR DL SSBlockController: SSBlock ControllerNR DMRS PBCH: DMRS for PBCH generatorNR DMRS PDCCH: DMRS for PDCCH generatorNR DMRS PDSCH: DMRS for PDSBCH generatorNR DMRS PUCCH2: DMRS for PUCCH2 generatorNR DMRS PUSCH: DMRS for PUSCH generatorNR HARQ Controller: Controller for HARQ closed-loop transmissionNR LayerDemapper: Layer demapperNR LayerMapper: Layer mapperNR LDPC CodeBlockDesegmentation: Code block desegmentation and code block CRC de-attachment for LDPCNR LDPC CodeBlockSegmentation: Code block segmentation and code block CRC attachment for LDPCNR LDPC Decoder: LDPC decoder

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5G Advanced Modem 3GPP NR Category (continued)Models NR LDPC Encoder: LDPC encoder

NR LDPC RateDematch: Downlink and Uplink SCH Rate dematching for HARQ closed-loop transmissionNR LDPC RateMatch: Downlink and Uplink SCH Rate matching for HARQ closed-loop transmissionNR Mapper: QAM modulatorNR MIMO Precoder: Transform precoding or de-precodingNR MuxSlot: Downlink slot multiplexerNR OFDM Demodulator: OFDM demodulatorNR OFDM Modulator: OFDM modulatorNR PBCH 1stScrambler: Perform first scrambling (in 38.212) for PBCHNR PBCH 2ndScrambler: Perform second scrambling (in 38.211) for PBCHNR PBCH ChannelCoder NR PBCH Payload: Generate PBCH payloadNR PDCCH ChannelCoder NR PDCCH Scrambler: NR Downlink and Uplink ScramblerNR PDSCH ChannelCoder NR PDSCH ChannelDecoderNR PDSCH ChannelEstimator: Channel Estimator based on DMRS of PDSCHNR PDSCH Equalizer: Equalizer for PDSCHNR Polar CodeBlockSegmentation: Code block segmentation and code block CRC attachment for PolarNR Polar Encoder: Polar encoderNR Polar RateMatch: Rate match for polar codeNR Port RF Mapping: Mapping Ports to RF LinksNR PortsCoupling: Add inputs by selective matrixNR PSS: PSS generatorNR PUCCH Format0 ModNR PUCCH Format0: Modulate PUCCH format 0NR PUCCH2 ChannelCoderNR PUSCH ChannelCoderNR Scrambler: NR Downlink and Uplink ScramblerNR SmallBlock Encoder: Small Block encoder and rate matchingNR SSBlockMapping: Mapping PSS, SSS, PBCH and PBCH DMRS into SSBNR SSS: S-SCH generatorNR Throughput: Throughput measurement in NR libraryNR TransformPrecoder: Transform precoding or de-precodingNR_UL_MUxOFDMSym: Uplink OFDM symbol multiplexer for 3GPP NR uplinkNR_UL_Numerology_Src

Simulation Models and Building Blocks (Continued)

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Multi-antenna systemBeamformingFeatures Three beamforming types in transmitter, which is calculated by antenna position and angle, using desired phase shift

and desired weightsConfigurable and flexible hybrid beamforming architectureComplete narrowband system and OFDM-based wideband system simulationBaseline algorithm for narrowband and wideband systemIdeal and practical beam trainingCustom antenna pattern import (EMPro and HFSS data format)Taylor window for beamformingAnalyze impairments introduced by componentsAdditional SystemVue platform support for working with phased arrays. (The W1906EP/ET library also includes one license of the W1720EP/ET phased array beamforming kit)

Models ArrayCouple: Modeling Array Coupling in Tx side and Rx sideBeamPatternCalc: Visualize signal radiation pattern and antenna element radiation patternGenTxWeights: Generate Tx Weights by Theta and PhiHBF_Controller_NB: Baseline algorithm for narrowband hybrid beamforming ExampleHBF_Controller_WB: Beam training solution for OFDM-based hybrid beamforming ExampleHBF_TxBeamGenerator: Tx beam generator dedicated for wideband hybrid beamforming ExampleHBF_RxBeamGenerator: Rx beam generator dedicated for wideband hybrid beamforming ExampleMultiCh_UpSampling: Multiple channel upsamplingMultiCh_DownSampling: Multiple channel downsamplingTx_Beamformer: Implements beamforming on the input signal and controls the phase and/or relative amplitude of the signal at each antennaTx_Beamformer_RF: Envelope-type of transmit beamformerTx_Beamformer_URA: Transmission beamformerRx_Beamformer: Implements beamforming on the received signalRx_Beamformer_RF: Envelope version of receive beamformerRx_Beamformer_URA: Receiving beamformer

MIMOFeatures Modulation (BPSK, QPSK, 8-PSK, 16-PSK, 16-QAM, 32-QAM, 64QAM, 128-QAM, 256-QAM, 512-QAM, 1024-QAM,

2048-QAM, 4096-QAM, 16-APSK, 32-APSK, Star 16-QAM, Star 32-QAM, Custom APSK)Transmit diversity (TD) mode or spatial multiplexing (SM) modeSupport 2 and 4 transmit antennaAlamouti coding, decoding which is compatible with LTE systemVarious decoder method such as linear ZF, linear MMSE, successive interference cancellation (SIC) ZF, SIC MMSE and maximum likelihood (ML)

Models MIMO_Encoder: Implements the encoding for transmit diversity or spatial multiplexing MIMO_Decoder: Implements the decoding for transmit diversity or spatial multiplexingMIMO_3DChannel: 3D channel model based on 3GPP channel model for frequencies from 0.5 to 100 GHzMIMO_FastFadingEngine: Fast fading engine for channel application

Simulation Models and Building Blocks (Continued)

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Wireless channelChannel soundingFeatures Reference signal generation for channel sounding measurement

Channel profile extraction for channel sounding data, including path number, path delay, path power, AoA, AoD and etc.SAGE 1 algorithm for parameter extraction

Models ChannelSounding_SigGen: Reference signal generator for channel sounding measurementChannelSounding_Extractor: Channel profile extractor for channel sounding data

3D channel modelFeatures 3GPP standard compliant 3D channel model (0.5 GHz ~ 100 GHz)

3GPP channel model (TR38.901) with user-defined scenarioChannel realization using custom impulse response data with the fast fading engine processing modelCustom antenna pattern import (EMPro and HFSS data format)

Models MIMO_3DChannel: Supports 3GPP channel model for frequencies from 0.5 to 100 GHzMIMO_3DChannel_RF: Envelop data type MIMO 3D channel model

Simulation Models and Building Blocks (Continued)

1. Space-Alternating Generalized Expectation-Maximization.

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The 5G library can be added as an option to any W146x Series SystemVue environment or bundle, such as the W1461BP SystemVue Comms Architect.

The SystemVue W1902 Digital Modem Library complements the 5G library by generating additional wideband waveforms, such as single-carrier QAM channels.

The SystemVue 5G library also works with Keysight hardware, such as the M8190A/95A AWG, M9703A/B digitizer, M9383A PXIe signal generator (1 MHz to 44 GHz), and N9040A/B (UXA) to measure MER and BER.

Figure 3 shows a configuration of the 5G library with Keysight EDA simulation tools and test instruments.

Configuration

Figure 3. The 5G library can also be used with other Keysight design software and test instruments.

Complementary Keysight software (such as Keysight I/O libraries, Command Expert, and the 89600 VSA) is often used to connect SystemVue to families of Keysight test equipment, including AWGs, digitizers, RF sources, RF analyzers, and others. SystemVue offers a convenient modeling and verification platform that can be used in the R&D environment, test lab, or shared over a network.

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This information is subject to change without notice. © Keysight Technologies, 2015 - 2018, Published in USA, May 21, 2018, 5992-1290EN

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For more detailed application information, refer to:www.keysight.com/find/eesof-systemvue-5g-verification www.keysight.com/find/eesof-systemvue-infowww.keysight.com/find/eesof-systemvue-videoswww.keysight.com/find/eesof-systemvue-evaluation

Model DescriptionW1906EP/ET 5G Baseband Verification LibraryW1907BP/BT “5G Forward” Baseband Verification Library Bundle, which includes:

– W1906EP/ET 5G library – W1918EP/ET LTE-A/LTE library (4G) – W1916EP/ET 2G/3G library – W1715EP/ET MIMO Channel Builder

Related products Model DescriptionW1461BP/BT SystemVue Comms ArchitectW1719EP/ET RF System Design Kit (for superior RF modeling)W1720EP/ET Phased Array Beamforming Kit (already included in each W1906)W1902EP/ET Digital Modem Library (for a variety of common waveforms)W2383EP/ET 5G Modem Library for ADS (for verifying RF components)